chrome/browser/resources/print_preview/data/ticket_items/collate.js

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 cr.define('print_preview.ticket_items', function() {
   6   'use strict';
   7
   8   /**
   9    * Collate ticket item whose value is a {@code boolean} that indicates whether
  10    * collation is enabled.
  11    * @param {!print_preview.AppState} appState App state used to persist collate
  12    *     selection.
  13    * @param {!print_preview.DestinationStore} destinationStore Destination store
  14    *     used determine if a destination has the collate capability.
  15    * @constructor
  16    * @extends {print_preview.ticket_items.TicketItem}
  17    */
  18   function Collate(appState, destinationStore) {
  19     print_preview.ticket_items.TicketItem.call(
  20         this,
  21         appState,
  22         print_preview.AppState.Field.IS_COLLATE_ENABLED,
  23         destinationStore);
  24   };
  25
  26   Collate.prototype = {
  27     __proto__: print_preview.ticket_items.TicketItem.prototype,
  28
  29     /** @override */
  30     wouldValueBeValid: function(value) {
  31       return true;
  32     },
  33
  34     /** @override */
  35     isCapabilityAvailable: function() {
  36       return !!this.getCollateCapability_();
  37     },
  38
  39     /** @override */
  40     getDefaultValueInternal: function() {
  41       var capability = this.getCollateCapability_();
  42       return capability.hasOwnProperty('default') ? capability.default : true;
  43     },
  44
  45     /** @override */
  46     getCapabilityNotAvailableValueInternal: function() {
  47       return true;
  48     },
  49
  50     /**
  51      * @return {Object} Collate capability of the selected destination.
  52      * @private
  53      */
  54     getCollateCapability_: function() {
  55       var dest = this.getSelectedDestInternal();
  56       return (dest &&
  57               dest.capabilities &&
  58               dest.capabilities.printer &&
  59               dest.capabilities.printer.collate) ||
  60              null;
  61     }
  62   };
  63
  64   // Export
  65   return {
  66     Collate: Collate
  67   };
  68 });